Finding the Fourth Proportional to 104,609.24, 144,363.56 and 56,865.80
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Solution
The fourth proportional to 104,609.24, 144,363.56 and 56,865.80 is: 78,476.33
Step by Step Solution
- Step 1: Write the proportion equation
104,609.24 : 144,363.56 = 56,865.80 : x - Step 2: Convert to fraction form
104,609.24/144,363.56 = 56,865.80/x - Step 3: Cross multiply
104,609.24x = 144,363.56 × 56,865.80 - Step 4: Simplify right side
104,609.24x = 8,209,349,330.25 - Step 5: Solve for x
x = 8,209,349,330.25/104,609.24 - Step 6: Final answer
x = 78,476.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.